Someone at the Las Vegas Convention and Visitors Authority, which helps promote McCarran International Airport, saw that tweet and asked McCarran officials if they could beat that.

They thought they could. With this:

The Airports Council International noticed too and started tweeting and retweeting these images with an #AirportThrowdown hashtag. Soon airports around the country -and the world – were joining in with pictures and tweets trying to one-up each other, in a fun way that has gone viral.